Padlock for use with hasps



Dec. 1, 1953 A. w. BEACH 2,660,872

PADLOCK FOR USE WITH HASPS Filed June 3, 1950 2 Sheets-Sheet l IN VEN TOR.

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fawn? A TTORNEY Dec. 1, 1953 A. w. BEACH ,660 7 PADLOCK FOR USE WITH HASPS Filed June 3, 1950 2 Sheets-Sheet 2 INVENTOR. M JZZZZM ATTORNEY Patented Dec. 1, 1953 UNITED STATES TENT" OFFICE 3' Claims.

This invention relates to hasp locks for use on doors in general, and especially to a burglar-proof lock of simple and substantial construction, coonomical to manufacture and: assemble, and highly efficient in use.

One of the prime objects of the invention is to design a hasp lock, the body of which is smooth and streamlined, and which has no accessible joints or parts in which a prying tool may be wedged, or a hack saw inserted for the purpose of breaking the lock to gain access to the area protected by said lock.

Another object is to design a, lock composed of few parts, all of substantial design and construction, and so arranged that they are inaccessible to an unauthorized person, except by means of the proper key, thus offering-maximum protection of the premises protected by said look.

A further object is to design a lock in which all operative parts are effectively concealed, which is relatively small andcompact in size, and neat and pleasing in appearance.

With the above and other objects in view, the present invention consists in. the combination. and arrangement of parts, hereinafter more fully described, illustrated in the accompanying drawings, and more particularly pointed out in the ap-- pended claims, it being understood that changes may be made in the form, size, proportion, and minor details of construction, without departing from the spirit, or sacrificing any of the advantages of the invention.

In the drawings:

Fig. l is a longitudinal, part sectional View showing my lock in position on a door.

Fig. 2 is a front elevational View of the lock.

Fig. 3 is a longitudinal, sectional view taken on the line 33 of Fig. 2 with the lock housing omitted, and showing the hasp and locking bolt secured to a door.

Fig. 4 is an exploded view showing the locking bolt, closure plate, operating disc and housing.

Fig. 5 is an inverted view of the closure plate showing the locking segments, and looking in the direction indicated by the arrows 5-5 shown in Fig. 4, the solid lines showing the segments in locked position and the broken lines showing the segments swung to open position.

Fig. 6 is also a face view of the intermediate operating disc looking in the direction indicated by the arrows 6-6 shown in Fig. 4.

Fig. 7 is a face View of the interior of the housing looking in the direction indicated by the arrows ll shown in Fig. 4.

Fig. 8 is a part sectional, elevational View of the lock showing it in locked position.

Referring' nowmore specifically-to the drawings in which I have shown the preferred embodiment of my invention, the numeral 8 indicates a stationary strap which can be bolted to a fixed. supporting member S by means of a countersunk, round-headed bolt 9, and a hasp section It is hingedly connected to the strap 8 by means of a pin I i, the head, of the pin being countersunk so that it is diflicult of access, the one end being blind so that removal of'said pin would also be extremelydifficult. A centrally disposed opening [2 is provided adjacent the opposite free end of the hasp, and a countersunk area or recess I3 surrounds the said opening.

The lock L comprises a bell-shaped housing It, the upper end of which is solid'and a centrally disposed, cylindrical barrel member lfi extends through this solid portion, the side walls of the barrel being-fiat as at It, and said barrel is bored as ati! to revolvably accommodate a key cylinder It.

Diametrically opposed recesses i9 are provided in the lower end section of the barrel [5 and round nosed pins 20 are mounted in said recesses, said pins projecting into grooves 2| provided in the key cylinder I 8, this cylinder being formed with abutments22 formingstops for limiting rotative movement of the key cylinder in the one direction.

The inner end of the key cylinder l8 projects beyond the end of the barrel [5 and is cam-shaped as at 23 to form a close fit with the opening 25 provided in the intermediate operating disc 26 so that it may be rotated as will be hereinafter described.

The intermediate shouldered disc 26 fits in the housing It directly below the end of the cylinder 15 with the opening 25 in alignment with the camshaped end 23, this opening being of the same contour as the lug so that it readily fits therein.

Circumferentially spaced pins 2'! are provided in the lower face of the disc 26, and a closure plate or disc 23 fits flush with and forms a closure for the lower open end of said housing, and this plate is held in position by means of screws 29 which have threaded engagement with the rim of the housing and the plate 28 respectively.

A plurality of segments 30 are pivotally mounted on the inner face of the closure plate 25 by means of hinge pins 3!, the inner edge of each segment being rounded as at 32 to form the segment of a circle, and an arcuate slot 33 is provided in each segment, and in which the pins 21 are mounted. The side edges of the segments are squared as shown, and when the assembly is swung into closed engaging position, fit snugly closed abutting relation one against the other, all as clearly shown in solid lines in Fig. 5 of the drawings, the inner edges 32 forming a complete circle which engages the turned section 34 of'the locking bolt 35, said locking bolt being anchored in the door D in any approved manner, and the outer end is rounded as at 36 to facilitate easy removal and insertion in the housing.

To look the lock, it is merely necessary to swing the hasp over the locking bolt 35, then place the housing hi over the bolt, move it inwardly until it bottoms in the countersunk area [3 of the hasp l9, and the turned portion 34 of the locking bolt 35 will then be in horizontal alignment with the segments 30. The key K is then rotated to rotate the key cylinder I8, and with it the intermediate operating disc 26, the pins 21 of said disc swinging the segments 30 about their hinge point 3i, so that the segments are swung into and into a true circle within the shouldered section 34 of the locking bolt, thus firmly locking the housing thereto.

To open the lock, it is merely necessary to turn the key K in the opposite intermediate disc 26 in the same direction, and this in turn swings the segments 30 outwardly and clear of the locking post, all as clearly shown in broken lines in Fig. 5 of the drawings.

From the foregoing description, it will be obvious that I have perfected a very simple, sturdy and substantial burglar-proof lock for the purpose described.

What I claim is:

direction to rotate the i1 1. In a lock adapted to fit over and secure to a shouldered locking bolt, a having a closed end wall with a central aperture therethrough, the opposite end of said housing being open, a disk member revolubly mounted in said housing interjacent the ends thereof and formed with an opening therein, a key actuated cylinder revolubly mounted in said aperture and formed with a cam-shaped extension extending into said opening in-said disk to actuate said disk, circumferentially spaced projecting pins in the face of the disk adjacent said open end of said casing, a closure plate forming a closure for the open end of the housing and having an bell-shaped housing opening therethrough to admit said locking bolt to said housing, a plurality of segment members pivotally connected to the inner face of said plate and swingable to locking engagement with said locking bolt adjacent said shouldered portion, the outer edges of said segment members being shaped to form a true circle when the segments are swung inwardly into abutting relation, said segments having arcuate slots to accommodate said pins to be swung thereby to locked and unlocked position when the key cylinder is actuated to operate said disk.

2. In a lock adapted to fit over and secure to a locking bolt having a groove therein, a housing having a closed end wall with an aperture therethrough, the opposite end of said housing being open, a key actuated cylinder revoluble in said aperture and extending into said housing, a disk member operatively associated with said cylinder to rotate therewith, a stationary plate forming a closure for the open end of the housing and having an opening therein through which said looking bolt may extend into said housing, arcuate segment members pivotally mounted on the inner face of the stationary plate and swingable into locking position in said groove in said bolt, and means on said disk member in operative engage ment with said segment members to move them into and out of said groove when said key cylinder is actuated.

3. The combination as defined in claim 2 in which arcuate slots are provided in said segment members, and in which said means on said disk member includes pins on said disk member, said pins being accommodated within said arcuate slots to actuate said segment members when said key cylinder and disk member are revolved.

ARTHUR W.. BEACH.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 834,591 Streams Oct. 30, 1906 1,764,367 Szymanski June 17, 1930 2,018,745 Schlitz Oct. 29, 1935 2,420,061 Adams May 6, 1947 

